Definition

1. Noun:
   • The fundamental frequency: The "first harmonic" is the lowest frequency component in a harmonic series, also known as the fundamental tone. It is the base pitch upon which all other higher harmonics (overtones) are built.

Usage Examples

• Noun:
  • When a guitar string vibrates, it produces the first harmonic as its primary pitch.
  • The first harmonic of this pipe is 440 Hz, which we perceive as the note A.

Advanced Usage

• In Acoustics and Music Theory: The term is used to describe the foundational frequency in the analysis of complex sounds. The relationship between the first harmonic and its multiples defines the timbre of an instrument.
  • The richness of a violin's sound comes from the relative strengths of its first harmonic and the subsequent overtones.

Variants and Related Words

• Fundamental (Frequency) (n): A direct synonym for the first harmonic.
  • The fundamental is the most prominent tone you hear.
• Harmonic Series (n): The complete set of frequencies comprising the fundamental and its integer multiples.
  • The harmonic series is a key concept in understanding musical acoustics.

Synonyms

• Fundamental tone
• Fundamental frequency
• Base frequency

Related Phrases

• Second harmonic: The first overtone, which is exactly twice the frequency of the first harmonic.
  • The second harmonic is an octave above the fundamental.

Noun

1. the lowest tone of a harmonic series